Game suffers from collision box issues but that can be understandable for a jam game. Although being fun at first, spell-casting becomes quite repetitive. Adding combos and maybe Arx Fatalis style spell-casting (using mouse to draw runes and make the spell) will make it more fun. Tutorial guys location is a bit odd. I think he should be the first thing player encounters. Game almost have zero direction what to do next or shows the objectives clearly. Most of the time I blast the purple guys, which is quite fun but it becomes dull because of lack of general direction. Very good art style, color selection, though it is far from the theme of the jam.
Is this harsh enough :)